Brick kiln furnace



J. H. WARWOOD BRICK KILN FURNACE Filed Jan. 27. 1926 2 Sheets-Sheet 1 oct. 19 192e.

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`dalla-Mw SLM mg! Joseph H. Warwoad Oct.v

J. H. wARwooD BRICK KILN FURNACE FiledrJan. 27. 192e 2 Sheets-Sheet 2 IN VENT 0R Jou;3 1711 H. Warwood yniassof coals will restV directly upon the grateV bars 8. Above this mass will be a ysecondinas's of coals whichh-ave beenpreheated, dried outv and frein-which `most ofy the gas is driven od. This secondary mass is thus prepared for combustion in the usual way.'l The fresh coal thrown in through the furnace front will be received" upon this secondary Vmass directly beneath the metal frame and the shoulder 21 and this fresh coal will immediately begin to gas heavily and ordinarily would cause considerable smoke. However, suitable quantitiesof oxygen can be Supplied to this gas lby'appro- `priately adjusting the dampers 36 and 87.

curved walls before arriving` at the slot 29 Y atthe central part of the inner wall 18. The airis drawn downwardly through this slot 29 directly into the mass of fresh coal and this air is pre-heated in the front frame in passing about for the angular distance referred to.V The air being brought in op-y posite directions to the central slot 29 will cause a diminution in the velocity of the air currents, one air current striking against Y and substantially destroying the other, whereby the oxygen will be fed quietly down into thel fresh coal bed. It will be apparent that the slot 29 through whichl this air quietly issues is located very close to the mass of fresh coalV and the gas will be take up quietly by the oxygen.

The furnace is a natural draft furnace and requires no mechanical appliances.l ',It is cheap to install and does not require any special .brick shapes.

lt will be apparent that it is easy to lire and handle and, due to the inlet of air, the

combustion is as complete as practicable.V The furnace is much cooler to fire and clean than theaverage kiln furnace; it is Vpractically smokeless, securing a greater percentage Vof heatV units than present'furnaces;L

and onfaecount of its clear fire and excellent combustion qualities it will be found an `ideal Vcoal furnace for high grade brick.

On account of the design of its construction it is less affected by high wind than most f kiln furnaces and its design is such that it will not easily burn out and will not often Vrequire repairing. The use of this furnace should entail a saving of from 16 to 2O percent of fuel.

It' is obvious that various changes and modifications may be made in the details j i f 1,604,005

of construction and. design of the above specifically described embodiment of this inventionwithout departing from the spirit lthereof, such changes and modifications being restricted only by the scope-of the following claims. L v

What is claimed is 1. A brick kiln furnace comprising a front wall having a substantially semi-circular opening' therein and having lateral dampen kcontrolled passages communicating with opposite sides of the opening at low points thereof, and a substantially semi-circular front frame mounted in said opening land havin@ inner and outer wallsforenclosinfw a preheating chamber for the air, said outer wall having vout away parts at its ends to register with the air passages in said'furnace wall, said inner vframe wall having a centraly slot for directing theair downwardly intoV out-ei' spaced curved walls and a sloping front curved wall connecting said inner an cuter walls along their outer edges, said outer curved wall having cut awayen'd por-A tions to register with the air passages, said inner curvedwall having a central slot for placing the interiorof vthe front frame in communication with the combustion chamber of vthe furnace.

3. A brick kiln furnace comprising a front wall having a substantially semi-circular opening with a shoulder depending for a distance downwardly at the inner endv of the opening, the front wall ofthe furnace below said opening being provided with an inner sloping wall progressing from a point adj acent the lire box upwardly and outwardly and terminatingat a point intermediate the inner and outer ends of said opening, a'V front frame inoiinted insaid opening with its rear` ends engaging against said shoulder and with its bottom edges resting. adjacent the upper end of said sloping wall, said frame composed of inner and outer spaced curve'dwalls,

and a curved connecting wall joining the outer edges of said inner and outer curved walls, said Youter wall having cut away end portions with feet adjoining the cut away portions, said cut away portions arranged to receive air, said inner curved wall having `a slot at its intermediate portion for re-V ceiving air and permitting it .to be drawn into the furnace combustion chamber.

JOSEPH HENRY WTAQRWOOD. 

